What’s Vulnerable › Vulnerabilities

CVE-2025-53769: Windows Security App Spoofing Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-12 · updated 2026-06-17
• Weakness: CWE-73

Description

External control of file name or path in Windows Security App allows an authorized attacker to perform spoofing locally.

Affected products

• Microsoft Windows Security App: before 1000.27840.0.1000 — fixed in 1000.27840.0.1000
• Microsoft Windows Security App: from 1000.0.0.0 before 1000.27840.1000.0 — fixed in 1000.27840.1000.0

How to fix

Upgrade to a fixed version: Microsoft Windows Security App 1000.27840.0.1000; Microsoft Windows Security App 1000.27840.1000.0. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53769

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